Additional safety information
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directions for locating the FCC identification number on your phone so you
can find your phone’s RF exposure level in the online listing.
8. What has FDA done to measure the radiofrequency energy
coming from wireless phones?
The Institute of Electrical and Electronic Engineers (IEEE) is developing a
technical standard for measuring the radiofrequency energy (RF) exposure
from wireless phones and other wireless handsets with the participation and
leadership of FDA scientists and engineers. The standard, Recommended
Practice for Determining the Spatial-Peak Specific Absorption Rate (SAR) in
the Human Body Due to Wireless Communications Devices: Experimental
Techniques, sets forth the first consistent test methodology for measuring
the rate at which RF is deposited in the heads of wireless phone users. The
test method uses a tissue-simulating model of the human head. Standardized
SAR test methodology is expected to greatly improve the consistency of
measurements made at different laboratories on the same phone. SAR is the
measurement of the amount of energy absorbed in tissue, either by the whole
body or a small part of the body. It is measured in watts/kg (or milliwatts/g) of
matter. This measurement is used to determine whether a wireless phone
complies with safety guidelines.
9. What steps can I take to reduce my exposure to
radiofrequency energy from my wireless phone?
If there is a risk from these products—and at this point we do not know that
there is—it is probably very small. But if you are concerned about avoiding
even potential risks, you can take a few simple steps to minimize your
exposure to radiofrequency energy (RF). Since time is a key factor in how
much exposure a person receives, reducing the amount of time spent using a
wireless phone will reduce RF exposure.
If you must conduct extended conversations by wireless phone every day, you
could place more distance between your body and the source of the RF, since
the exposure level drops off dramatically with distance. For example, you
could use a headset and carry the wireless phone away from your body or use
a wireless phone connected to a remote antenna.
Again, the scientific data do not demonstrate that wireless phones are
harmful. But if you are concerned about the RF exposure from these products,
you can use measures like those described above to reduce your RF exposure
from wireless phone use.
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